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A2UI Atomic Catalog — SDKs & Client Libraries

Developer & Agent Documentation

Official client libraries, SDK packages, CLI tools, and agent integrations for the A2UI Atomic Catalog.

1. Node.js & CLI SDK (@a2uicatalog/mcp)

The official npm package provides a standalone CLI renderer, a local MCP server for desktop editors, and build automation:

# Render atom payload to HTML directly
npx -p @a2uicatalog/mcp a2ui render page.json

# Launch local MCP server for Claude Desktop or Cursor
npx @a2uicatalog/mcp

Package registry entry: @a2uicatalog/mcp on npm.

2. Agent Skills Integration

Installable agent skills for Claude, Cursor, and Agent Skills-compatible clients:

npx skills add a2uicatalog/a2ui

Includes skills for catalog discovery (a2ui-catalog), composition (a2ui-compose), and MCP server connection (a2ui-mcp).

3. Python SDK (a2uicatalog)

A thin, dependency-free Python client for the REST API: compose, render, batch render, catalogue search and local payload validation.

pip install a2uicatalog

Package page: a2uicatalog on PyPI. Source: sdk/python/ in the GitHub repository.

4. Python & A2A SDK Integration

For Python applications using Google's A2A protocol (a2a-sdk), connect over JSON-RPC or use the typed extension wrappers in the open-source repository (renderers/a2a_extension.py).

5. Generating Typed SDKs from OpenAPI

Generate native client SDKs for any language (TypeScript, Python, Go, Java, Swift) using OpenAPI Generator and our OpenAPI 3.1 specification:

npx @openapitools/openapi-generator-cli generate \
  -i https://a2uicatalog.ai/openapi.json \
  -g typescript-fetch \
  -o ./src/a2ui-client

Developer Resources